On a 67 b-body, the rear seatback sits against the side of the stock wheelhouse location. If you move it over a couple of inches, you'd have to maybe bend up the seat frame? That's what I'm wondering about. In addition, the outer seatbelt anchor points are in the strip of metal between the wheelhouse and the framerail that's going to be removed...so it has to be relocated somewhere. Where do folks put that?